Reference for Keritot 13:26

הכי קתני

[that is] who says that the Day of Atonement brings no forgiveness; if then he repents after the Day of Atonement, he is liable to a suspensive guilt-offering.<span class="x" onmousemove="('comment',' And for this reason the Mishnah doss not exclude this case.');">¹⁹</span>

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